There is no direct support for parameter help for VBA UDF's. Laurent Longre
has a free addin which supposedly allows this.

http://xcell05.free.fr/

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Regards,
Tom Ogilvy


"AMD via OfficeKB.com" <u3276@uwe wrote in message
news:5ca733f509464@uwe...
MS Excel shows help for its standard functions (like Sum(), Avg(),.) and
their parameters in the "Insert function" dialog. At the same time it is
possible to write your own functions in addin worksheet and use them in
the
same manner as standard functions. Is it possible to show help for
functions
and their parameters defined in addin worksheet? If yes, how can I do it?

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